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ERC-721C Whitelisting

ERC-721C collections enforce creator royalties by restricting which contracts can move their tokens. For an ERC-721C collection to work on GONDI, the collection owner must whitelist the GONDI contracts that touch the NFT during the loan lifecycle. Transfers from non-whitelisted contracts are rejected onchain.

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Contracts To Whitelist

Every ERC-721C collection that wants full GONDI support needs to whitelist all five contracts below. Partial whitelisting is possible, but flows that rely on a non-whitelisted contract will revert.

  • MultiSourceLoan 3.1: 0xf41B389E0C1950dc0B16C9498eaE77131CC08A56 — starting and repaying loans

  • MultiSourceLoan 3.0: 0xf65b99ce6dc5f6c556172bcc0ff27d3665a7d9a8 — repaying legacy 3.0 loans

  • PurchaseBundler 3.1 (cross-currency): 0xe02d85e80c1ebda5aa43b8a1996332a83f855a59 — buy-with-loan and sell-and-repay

  • Seaport 1.6: 0x0000000000000068f116a894984e2db1123eb395 — sales, buy-with-loan, and sell-and-repay

  • Vault: 0x823dE2c44369e94CAc3DA789Ad4b6493e27e4Bfe — creating vaults that bundle multiple NFTs into one loan

Note: Addresses are Ethereum mainnet. New GONDI versions may require whitelisting additional addresses.

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Applying the Whitelist

Exact steps depend on the transfer validator your collection uses (for example, Limit Break's Creator Token Transfer Validator).

  • Open the transfer validator contract used by your collection

  • Add each of the five addresses above to your collection's operator allowlist

  • Confirm the collection's security level consults the operator allowlist

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Verifying

  • Read the operator allowlist and confirm all five addresses are present

  • Take out and repay a small loan, and run a buy-with-loan and sell-and-repay if applicable — any revert usually means a missing whitelist entry

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